----------------------------Original message---------------------------- We have 8 black & white sheets from OHIO Division of Geological Survey, Bulletin 44 1943. Also from Colorado Land Use Commission, 8 maps, 21"x33". Jan. 1973, COLORADO 1990: The Trend Pattern & A policy Plan. Feb. 1973, Exposed Aquifers, Transport Systems, Land Ownership, Hazards, Water Service Areas, & Sewer Service Areas. Basically 17 year projections for Colorado. Peter Gratton [log in to unmask] Government Publications Dept Library Univ of Nevada, Las Vegas 4505 MAryland Parkway Box 457013 Las Vegas NV 89154-7013 I have all the answers. I just don't know, what questions they go to.